<template>
    <div class="seller" ref="seller">
        <div class="seller-content">
            <div class="overview">
                <h1 class="title">{{ seller.name }}</h1>
                <div class="desc border-1px">
                    <star :size="36" :score="seller.score"></star>
                    <span class="text">({{seller.ratingCount}})</span>
                    <span class="text">月售{{seller.sellCount}}单</span>
                </div>
                <ul class="remark">
                    <li class="block">
                        <h2>起送价</h2>
                        <div class="content">
                            <span class="stress">{{seller.minPrice}}</span>元
                        </div>
                    </li>
                    <li class="block">
                        <h2>商家配送</h2>
                        <div class="content">
                            <span class="stress">{{seller.deliveryPrice}}</span>元
                        </div>
                    </li>
                    <li class="block">
                        <h2>平均配送时间</h2>
                        <div class="content">
                            <span class="stress">{{seller.deliveryTime}}</span>分钟
                        </div>
                    </li>
                </ul>
                <div class="favorite" @click="toggleFavorite">
                    <span class="icon-favorite" :class="{'active':favorite}"></span>
                    <span class="text">{{favoriteText}}</span>
                </div>
            </div>
            <spilit></spilit>
            <div class="bulletin">
                <h1 class="title">公告与活动</h1>
                <div class="content-wrapper border-1px">
                    <p class="content">{{seller.bulletin}}</p>
                </div>
                <ul v-if="seller.supports" class="supports">
                    <li class="support-item border-1px" v-for="(item,index) in seller.supports" :key="item.i">
                        <span class="icon" :class="classMap[seller.supports[index].type]"></span>
                        <span class="text">{{ seller.supports[index].description }}</span>
                    </li>
                </ul>
            </div>
            <spilit></spilit>
            <div class="pics">
                <h1 class="title">商家实景</h1>
                <div class="pic-wrapper" ref="picWrapper">
                  <ul class="pic-list" ref="picList">
                      <li class="pic-item" v-for="pic in seller.pics" :key="pic.i">
                          <img :src="pic" width="120" height="90">
                      </li>
                  </ul>  
                </div>
            </div>
            <spilit></spilit>
            <div class="info">
                <h1 class="title border-1px">商家信息</h1>
                <ul>
                    <li class="info-item" v-for="info in seller.infos" :key='info'>{{info}}</li>
                </ul>
            </div>
        </div>
    </div>
</template>

<script>
import BScroll from 'better-scroll'
import {saveToLocal,loadFromLocal} from '../../common/js/store'
import star from '../star/star'
import spilit from '../split/split.vue'
export default {
    props: {
        seller: {
            type: Object
        }
    },
    data() {
        return {
            favorite: (()=>{
                return loadFromLocal(this.seller.id,'favorite',false);
            })()
        }
    },
    computed: {
        favoriteText() {
            return this.favorite?'已收藏':'收藏';
        }
    },
    components: {
        star,
        spilit
    },
    watch: {
      'seller'() {
          this.$nextTick(() => {
          this._initPics();
        });
      }
    },
    created() {
        this.classMap = ['decrease','discount','special','invoice','guarantee']
    },
    mounted() {
        this.$nextTick(() => { // 代码保证 this.$el 在 document 中
        this._initScroll();
        this._initPics();   // mounted 此刻的seller还是空对象，所以要使用 watch检测seller变化，或者使用 updated() 钩子函数，但尽量使用watcher和计算属性
      });
    },
    methods: {
      toggleFavorite(event) {
          if(!event._constructed){
              return;
          }
          this.favorite = !this.favorite
          saveToLocal(this.seller.id,'favorite',this.favorite)
      },
      _initScroll() {
        this.scroll = new BScroll(this.$refs.seller, {
          click: true
        });
      },
      _initPics() {
        if (this.seller.pics) {
          let picWidth = 120;
          let margin = 6;
          let width = (picWidth + margin) * this.seller.pics.length - margin;
          this.$refs.picList.style.width = width + 'px';
          this.picScroll = new BScroll(this.$refs.picWrapper, {
            scrollX: true,    // 横向滚动
            eventPassthrough: 'vertical'    // 在这个区块忽略竖向滚动
          });
        }
      }
    }
}
</script>

<style lang="stylus" scoped>
@import "../../common/stylus/mixin"

.seller
  position absolute
  top 174px
  bottom 0
  left 0
  width 100%
  overflow hidden
  .overview
    padding 18px
    .title
      margin-bottom 8px
      line-height 14px
      color rgb(7,17,27)
      font-size 14px
    .desc
      padding-bottom 18px
      border-1px(rgba(7,17,27,0.1))
      font-size 0
      .star
        display inline-block
        vertical-align top 
        margin-right 8px
      .text
        display inline-block
        margin-right 12px
        line-height 18px
        vertical-align top
        font-size 10px
        color rgb(77,85,93)
    .remark
      display flex
      padding-top 18px
      .block
        flex 1
        text-align center
        border-right 1px solid rgba(7,17,27,0.1)
        &:last-child
          border :none
        h2
          margin-bottom 4px
          line-height 10px
          font-size 10px
          color rgb(147,153,159)
        .content
          line-height 24px
          font-size 10px
          color rgb(7,17,27)
          .stress
            font-size 24px
    .favorite
      width 50px
      position absolute
      right 11px
      top 18px
      text-align center
      .icon-favorite
        display block
        margin-bottom 4px
        line-height 24px
        font-size 24px
        color #d4d6d9
        &.active
          color rgb(240,20,20)
      .text
        line-height 10px
        font-size 10px
        color rgb(77,85,93)
  .bulletin
    padding 18px 18px 0 18px
    .title
      margin-bottom 8px
      line-height 14px
      color rgb(7,17,27)
      font-size 14px
    .content-wrapper
      padding 0 12px 16px 12px
      border-1px(rgba(7,17,27,0.1))
      .content
        line-height 24px
        font-size 12px
        color rgb(240,20,20)
    .supports
      .support-item    
        padding 16px 12px
        border-1px(rgba(7,17,27,0.1))
        font-size 0
        &.last-child
          border-none()
      .icon
        display :inline-block
        vertical-align :top
        width :12px
        height :12px
        margin-right :4px
        background-size :12px 12px
        background-repeat no-repeat
        &.decrease
         bg-image('decrease_4')
        &.discount
         bg-image('discount_4')
        &.guarantee
         bg-image('guarantee_4')
        &.invoice
         bg-image('invoice_4')
        &.special
         bg-image('special_4')
      .text
        line-height 16px
        font-size 12px
        color rgb(7,17,27)
  .pics
    padding 18px 
    .title
      margin-bottom 12px
      line-height 14px
      color rgb(7,17,27)
      font-size 14px
    .pic-wrapper
      width 100%
      overflow hidden
      white-space nowrap
      .pic-list
        font-size 0
        .pic-item
          display inline-block
          margin-right 6px
          width 120px
          height 90px
          &:last-child
            margin 0
  .info
    padding 18px 18px 0 18px
    .title
      padding-bottom 12px
      line-height 14px
      border-1px(rgba(7,17,27,0.1))
      color rgb(7,17,27)
      font-size 14px
    .info-item
      padding 16px 12px
      line-height 16px
      border-1px(rgba(7,17,27,0.1))
      font-size 12px
      &:last-child
        border-none()
      color rgb(7,17,27)
</style>


